2015-12-30

"Believe" is often associated with religion. However, even for using the "scientific method", we are forced to assume certain qualities of the Universe that we cannot prove nor fully verify. The most basic assumption is that there are common laws that are universal and they function the same across the whole Universe. This is a leap of faith that we have to take if we believe that the Universe can be understood at all by humans.

2015-12-21

Few people can be happy when basic needs are not met. When you are hungry or in pain it is unlikely that something would make you happy. Even with the basic needs fulfilled, many people have higher order needs, like being appreciated, achieving their highest potential.

"Noise cancellation" is a feature in recent high-end headphones that aims to actively remove the outside noise while listening music. You can also use them without music, however the efficiency is lower. "Noise cancellation" is a relatively new technology and you must be aware of what is reasonable to expect from such headphones.

2015-12-05

In a temperate musical octave, there are 12 possible
sounds. However, in a certain melody, usually, only 7 of them are used.
When you see, for example, "Symphony...in Do major", you should expect
that it is based on the white piano keys only. When using others scales, like
for "Symphony... in Re#", some of the white keys will be replaced by some of the
black keys.